X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=pygost%2Fasn1schemas%2Fx509.py;h=19a3b39e5742e4c46657e2a4d71d9c9df64fdeb4;hb=b8b853ca49a9dca40f446880fa809af51c611fe0;hp=cda11da42dcb4d1a8daff65bb054b9c6d02108f4;hpb=08cedcc91f44b8ffd2d8f3a3fbbb15263ccff440;p=pygost.git

diff --git a/pygost/asn1schemas/x509.py b/pygost/asn1schemas/x509.py
index cda11da..19a3b39 100644
--- a/pygost/asn1schemas/x509.py
+++ b/pygost/asn1schemas/x509.py
@@ -1,6 +1,6 @@
 # coding: utf-8
 # PyGOST -- Pure Python GOST cryptographic functions library
-# Copyright (C) 2015-2021 Sergey Matveev <stargrave@stargrave.org>
+# Copyright (C) 2015-2022 Sergey Matveev <stargrave@stargrave.org>
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -246,3 +246,17 @@ class AuthorityKeyIdentifier(Sequence):
         #     CertificateSerialNumber(impl=tag_ctxp(2), optional=True),
         # ),
     )
+
+
+class KeyUsage(BitString):
+    schema = (
+        ("digitalSignature", 0),
+        ("nonRepudiation", 1),
+        ("keyEncipherment", 2),
+        ("dataEncipherment", 3),
+        ("keyAgreement", 4),
+        ("keyCertSign", 5),
+        ("cRLSign", 6),
+        ("encipherOnly", 7),
+        ("decipherOnly", 8),
+    )